WO2015187471A1 - Inhalateur de poudre sèche avec évaluation de la réduction de la dose - Google Patents

Inhalateur de poudre sèche avec évaluation de la réduction de la dose Download PDF

Info

Publication number
WO2015187471A1
WO2015187471A1 PCT/US2015/033095 US2015033095W WO2015187471A1 WO 2015187471 A1 WO2015187471 A1 WO 2015187471A1 US 2015033095 W US2015033095 W US 2015033095W WO 2015187471 A1 WO2015187471 A1 WO 2015187471A1
Authority
WO
WIPO (PCT)
Prior art keywords
dose
staging area
dry powder
powder inhaler
discharge aperture
Prior art date
Application number
PCT/US2015/033095
Other languages
English (en)
Inventor
Peter A. Basile
Michael Galluppi
Mikhail Gotliboym
Christopher J. GRANELLI
Scott C. Brown
Original Assignee
Merck Sharp & Dohme Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merck Sharp & Dohme Corp. filed Critical Merck Sharp & Dohme Corp.
Priority to US15/315,988 priority Critical patent/US20170095625A1/en
Publication of WO2015187471A1 publication Critical patent/WO2015187471A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0065—Inhalators with dosage or measuring devices
    • A61M15/0068—Indicating or counting the number of dispensed doses or of remaining doses
    • A61M15/008—Electronic counters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A61M15/003—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0091—Inhalators mechanically breath-triggered
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A61M15/003—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using capsules, e.g. to be perforated or broken-up
    • A61M15/0043—Non-destructive separation of the package, e.g. peeling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0028—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up
    • A61M15/0045—Inhalators using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up using multiple prepacked dosages on a same carrier, e.g. blisters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/06—Solids
    • A61M2202/064—Powder
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3306—Optical measuring means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3317—Electromagnetic, inductive or dielectric measuring means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3389—Continuous level detection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502—User interfaces, e.g. screens or keyboards
    • A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • A61M2205/584—Means for facilitating use, e.g. by people with impaired vision by visual feedback having a color code

Definitions

  • the invention relates to dry powder inhalers, drug products and, more
  • DPIs Dry powder inhalers
  • a DPI device has been developed in the prior art which includes a "Dosing Done" indication light.
  • This device utilizes an inhalation sensor that detects a patient's inspiratory airflow. Upon breach of a threshold value, the device relies on an algorithm-controlled piezoelectric construct to disperse the APA for delivery. Completion of a dose is indicated by the end of the operating cycle of the piezoelectric construct. This device does not physically evaluate how much of a dose is actually administered.
  • a dry powder inhaler is provided herein which includes a dose chamber having a staging area configured to accommodate an inhalable dose of active pharmaceutical agent (APA).
  • a nozzle is provided having a discharge aperture with an inhalation channel communicating the staging area with the discharge aperture.
  • the inhalation channel is configured such that sufficient negative pressure applied to the discharge aperture draws a dose from the staging area towards the discharge aperture.
  • An arrangement is provided for evaluating the level of depletion of a dose from the staging area.
  • the subject invention allows for evaluating physical depletion of a staged dose so as to recognize the level of delivery thereof.
  • Figure 1 is a perspective view of a dry powder inhaler formed in accordance with the subject invention
  • Figure 2 shows generally components of a dry powder inhaler useable with the subject invention
  • Figure 3 is a schematic of a staging area useable with the subject invention.
  • Figure 4 shows a rupturable blister package useable with the subject invention
  • Figure 5 shows a peel-open foil package useable with the subject invention
  • Figures 6A-7B show optosensors useable with the subject invention
  • Figure 8 shows pressure sensors useable with the subject invention
  • Figure 9 shows a capacitance sensor useable with the subject invention
  • Figure 10 is a schematic representing electrically powered components useable with the subject invention
  • Figure 11 shows a display useable with the subject invention
  • Figures 12 and 13 show a modularly assembled dry powder inhaler formed in accordance with the subject invention.
  • Figure 14 is a graph representing an optical reflectance signal versus time over a dosing cycle.
  • a dry powder inhaler 10 which includes an arrangement for evaluating depletion of the dose so as to recognize the level of delivery thereof.
  • the dry powder inhaler 10 may be of any configuration which depends on inhalation for delivery of an active pharmaceutical agent (APA), including, but not limited to, the designs as shown in U.S. Patent No. 6,240,918, U.S. Patent No. 5,828,434, U.S. Patent No. 5,394,868 and U.S. Patent No. 5,687,710.
  • APA active pharmaceutical agent
  • the dry powder inhaler 10 generally includes at least one dose chamber 12, a nozzle 14 having a discharge aperture 16, and at least one inhalation channel 18. As shown in Figure 2, a plurality of the dose chambers 12 may be provided each having at least one of the inhalation channels 18. Various components may be provided along the flow path of each inhalation channel 18, such as a swirl nozzle, a
  • the dose chamber 12 includes at least one staging area 20 formed to
  • the dose 22 can be prepared in the staging area 20 in any manner.
  • the staging area 20 may include a recess 24 with a supporting mesh surface 26.
  • the volume of the recess 22 may be used to define the volume of the dose 22.
  • the staging area 20 may be replenished from a reservoir R containing a plurality of the doses, e.g., in loose powder form, such as by being moved in and out of communication with the reservoir R, e.g., by rotation.
  • pre-separated doses which may be individually packaged, or otherwise prepared, may be introduced to the staging area 20 as needed for dosing.
  • rupturable blister packages or capsules 26 Figure 4
  • peel-open foil packages 28 Figure 5
  • the staging area 20 is a location where the dose 22 is initially located in anticipation of delivery.
  • the inhalation channel 18 communicates the staging area 20 with the discharge aperture 16 so that sufficient negative pressure applied to the discharge aperture 16 draws the dose 22 from the staging area 20 towards the discharge aperture 16. This negative pressure is generated by a user inhaling with the nozzle 14 being in the user's mouth and is utilized to deliver the dose 22 to the user.
  • a dose herein includes a single complete dose, as well, a fraction of a complete dose (e.g., where a plurality of the staging areas 20 are utilized, each providing a fraction of an intended total dose to a patient). Fractional portions of a dose may be combined in one or more of the inhalation channels 18 and/or in the nozzle 14 for delivery.
  • An arrangement is provided with the dry powder inhaler 10 to evaluate the level of depletion of the dose 22 from the staging area 20. This allows for real-time monitoring of depletion of the dose 22 during a dosing cycle to determine the actual level of delivery thereof.
  • Various arrangements for physically evaluating the level of depletion may be utilized.
  • at least one optosensor 32 may be utilized to observe the level of depletion of the dose 22 from the staging area 20.
  • the optosensor 32 may be a photoelectric sensor which may be of the reflective-type.
  • the optosensor 32 may be of various configurations.
  • the optosensor 32 may include an electromagnetic energy emitter 32A and a corresponding receiver 32B located on opposing sides of the staging area 20.
  • the dose 22 provides varying levels of obstruction of passage of electromagnetic energy between the emitter 32A and the receiver 32B as the dose 22 is administered.
  • the level of depletion of the dose 22 may be determined as a function of the amount of electromagnetic energy detected by the receiver 32B from the emitter 32A.
  • the optosensor 32 may observe the staging area 20 from above or below, particularly where the staging area 20 is transmissive to the electromagnectic energy of the optosensor 32 (e.g., where the mesh surface 26 is utilized).
  • the optosensor 32 may be located to observe the dose 22 from a side perspective, e.g. in a plane parallel to the staging area 20.
  • the optosensor 32 may have the emitter 32A and
  • the optosensor 32 may rely on reflectance of the electromagnetic energy off the dose 22 to provide an indication of the level of depletion thereof.
  • the level of reflected electromagnetic energy detected by the receiver 32B may be used to determine the level of depletion of the dose 22.
  • the optosensor 32 may be located above the staging area 20 ( Figure 7 A) or to the side of the staging area 20 ( Figure 7B).
  • the optosensor 32 may be located below the staging area 20 if the staging area 20 is transmissive to the electromagnectic energy of the optosensor 32 (e.g., where the mesh surface 26 is utilized).
  • the optosensor 32 may optionally include a reflector 34 positioned to reflect the electromagnetic energy from the emitter 32A to the receiver 32B. If utilized, the reflector 34 is positioned on the opposite side of the staging area 20 away from the optosensor 32. Reflectance from the reflector 34 is primarily relied upon, if utilized, rather than reflectance from the dose 22.
  • At least one pressure sensor 36 may be provided for measuring pressure in proximity to the staging area 20. Any known pressure sensor may be utilized, including a mechanical pressure gauge, piezoelectric sensor and so forth.
  • the pressure sensor 36 may include a transducer 38 to convert pressure readings into digital format.
  • the pressure sensor 36 may be located on the opposing side of the staging area 20 away from the inhalation channel 18 so that the staging area 20 is located in between the pressure sensor 36 and the inhalation channel 18. This allows for the pressure sensor 36 to detect pressure past the staging area 20 during dose delivery to provide an indication of actual pressure sensed at the staging area 20. This may be particularly effective where the mesh surface 26 is utilized in the staging area 20.
  • the pressure sensor 36 may be located adjacent to the staging area 20 on the same side of the staging area 20 as the inhalation channel 18. Further, two of the pressure sensors 36 may be provided on opposing sides of the staging area 20 to sense pressure drops thereacross. Sensed pressure levels on one or both sides of the staging area 20, based on calculations and/or empirical data, may be used as indicators of physical depletion of a dose from the staging area 20.
  • capacitance sensor 40 may be located adjacent to the staging area 20 configured to detect changes in levels of capacitance across the staging area 20. Such changes in the level of capacitance may be correlated with calculated or empirical data to indicate levels in change in volume of the dose 22.
  • the pressure sensor 36 may be provided in conjunction with the optosensor 32 and/or the capacitance sensor 40 to provide detection of inhalation in addition to monitoring of actual physical depletion of the dose 22.
  • the optosensor 32 and/or the capacitance sensor 40 may be provided to monitor for dose depletion along with the pressure sensor 36 monitoring inhalation.
  • the pressure sensor 36 may be configured to detect a certain pressure level as representative of sufficient inhalation being applied for dosing. This pressure detection provides physical detection of inhalation and aides in avoiding false dose depletion readings.
  • the dry powder inhaler 10 may be inverted or otherwise positioned to dislodge the dose 22 from the staging area 20 after being readied.
  • the optosensor 32 and the capacitance sensor 40 would detect the staging area 20 as being fully depleted in this event.
  • the pressure sensor 36 allows for the additional detection of inhalation as an additional check to verify proper dose administration.
  • dose depletion is detected with both detection of physical depletion of the dose 22 and that sufficient inhalation had been applied to the staging area 20.
  • the related package may be formed of electromagnetic energy transmissive material to permit dose depletion monitoring by the optosensor 32.
  • the pressure sensor 36 and/or the capacitance sensor 40 may be utilized. As shown in the Figures, the arrangements are particularly well-suited to evaluate depletion of a dose of loose (unpackaged) APA.
  • a switch 42 may be triggered to place the arrangements into an active state.
  • the arrangements may be maintained in a quiescent state between dosings to conserve power.
  • the switch 42 may be triggered by portion of the staging process in preparing the dose 22 (e.g., removal of a cap, movement of the staging area 20) or by inhalation of a user.
  • the switch 42 may be manual which would require a user to activate. It is possible to continually power the arrangements without requiring the switch 42.
  • Power source 44 may be provided for electrically powering the arrangements and other components requiring electrical power.
  • the dry powder inhaler 10 may be configured to not require any electrical power for operation thereof in staging a dose and to administer the dose.
  • the power source 44 may be a DC based source, such as a replaceable or chargeable battery.
  • a computer processing unit (CPU) 46 may be electrically coupled with the arrangements to process readings thereof. Power for the CPU 46 may be provided by the power source 44.
  • the CPU 46 may be configured to control display of different states of dosing.
  • the CPU 46 may be linked to a display 48 ( Figure 11) to show different states of the dose 22 from a ready state (staged, ready for delivery) to a completed state based on readings from the arrangements.
  • the display 48 may graphically represent the different states in any manner, such as by textual indications, bar graph, pie graph, percentage representation, and so forth. If the user stops a dosing cycle prior to the arrangements detecting complete depletion of the dose 22, the display 48 may indicate that only a partial dose was administered, thus prompting the user to further inhale.
  • one or more indicator lights 50 may be utilized to represent the different states of dosing. Different color lights may be utilized to represent the different states of dosing: green light may be used to represent the ready state; yellow light may be used to represent an incomplete dose; and red light may represent dose completed state. An indication of complete dosing may signal the switch 42 to deactivate the arrangements.
  • the CPU 46 may store readings from the arrangements. The readings may be retrievable from the CPU 46 through hard- wire linking therewith (jack or port connection) or through a wireless connection, such as by wireless transmitter 52, to evaluate compliance with a dosing regimen.
  • the CPU 46 may be configured to perform other functionality such as dose counting.
  • the CPU 46 may include a counter to keep count of each completed dose. With a specified number of total available doses, a low supply warning may be provided to the user, such as by a graphic on the display 48 and/or by an indicator light 50. Further, the CPU 46 may be configured to keep track of a user's dosing regimen and provide dosing reminders.
  • a clock may be provided with the CPU 46 to facilitate dose schedule tracking.
  • a user interface may be provided to allow a user to enter data into the CPU 46.
  • the user interface may be application software prepared for a smartphone, or other device, which can communicatively couple with the CPU 46, such as wirelessly (e.g., through a blue tooth connection) or through a hard-wired connection.
  • the display 48 may be a graphical user interface (GUI) which may be touch-enabled to accept input.
  • GUI graphical user interface
  • Other interfaces may be utilized such as buttons.
  • the dry powder inhaler 10 may be modularly formed by a drug module 54 and an electronics module 56.
  • the arrangements along with the power source 44, and all other components requiring electrical power from the power source may be located in the electronics module 56 so as to be isolated therein. This allows for reusability of the electronic components.
  • the drug module 54 may include elements needed to stage the dose 22, along with delivery components (the nozzle 14, the discharge aperture 16, the inhalation channel 18, the reservoir R).
  • the drug module 54 may be coupled to the electronics module 56 with subsequent doses being staged by the drug module 54 and depletion of the doses being evaluated by the electronics module 56.
  • the power source 44 may be sized to allow a single electronics module 56 to be used with a plurality of drug modules 54. This avoids the need to discard electrical components with exhaustion of APA from a dry powder inhaler.
  • the drug module 54 and the electronics module 56 may be configured to couple together, preferably releasably, using any known configuration.
  • the coupling may be configured to provide information to the CPU 46 regarding the corresponding drug module 54.
  • different pin patterns may be provided on the drug module 54 to be received by the electronics module 56 with the different pin patterns providing particular details about the drug module 54 (e.g., number of available doses, set dosing regimen). In this manner, different drug modules may be utilized with the electronics module 56 with little to no loss of functionality.
  • Portions of the arrangements may be located in the drug module 54 (e.g., reflector
  • the arrangements be wholly contained within the electronics module 56. This allows for the electronics module 56 to be a fully stand-alone unit.
  • the electronics module 56 may contain at least one of the optosensors 32 configured to utilize reflectance of electromagnetic energy off the dose 22 with the dose 22 being located in the drug module 54.
  • At least one of the pressure sensors 36 may be also located in the electronics module 56 to provide for inhalation detection, as discussed above, as an additional check on proper dose delivery.
  • a cap 58 may be provided which is securable to the dry powder inhaler 10 to cover the discharge aperture 16.
  • the cap 58 may be securable to the drug module 54, if utilized.
  • Figure 14 is a graph showing a possible operating cycle for the arrangements.
  • the staging area 20 is configured as shown in Figure 3 to include the recess 24, the mesh surface 26 and movement in and out of alignment with the reservoir R for dose replenishment.
  • the optosensor 32 detects the recess 24 as being empty (minimal reflectance) at the beginning and end of a dosing cycle, i.e., the dose 22 is not present in the recess 24.
  • High reflectance is detected with the recess 24 moved into alignment with the reservoir R, once the recess 24 is out of alignment with the optosensor 32.
  • the solid surface surrounding the staging area 20 causes the high reflectance.
  • the recess 24 rotated back to a ready state, the dose 22 provides an intermediate level of reflectance indicative of a full dose. With inhalation, the reflectance diminishes to a low state indicative of dose depletion. This cycle may be repeated.
  • efficiency of the administration of a dose may be determined. Rate of air flow through the inhalation channel 18 (e.g., by spaced-apart pressure sensors, etc.) may be monitored and compared against stored empirical data to determine the efficiency of the administration of the dose. Better efficiency indicates deeper delivery of the particles of the dose 22 into the lungs of a patient.
  • one or more optical sensors may be placed along the inhalation channel 18 to monitor velocity of the particles of the dose 22. The measured particle velocity can likewise be compared with empirical data to determine the efficiency of the administration of the dose.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

L'invention concerne un inhalateur de poudre sèche qui comprend une chambre de dosage comportant une zone préparatoire conçue pour accueillir une dose inhalable d'agent pharmaceutique actif. Il comprend une buse dotée d'une ouverture d'évacuation avec un canal d'inhalation faisant communiquer la zone préparatoire avec l'ouverture d'évacuation. Le canal d'inhalation est conçu de telle sorte qu'une pression négative suffisante appliquée à l'ouverture d'évacuation envoie une dose de la zone préparatoire vers l'ouverture d'évacuation. Un agencement est prévu pour évaluer le niveau de réduction d'une dose de la zone préparatoire. Avantageusement, la présente invention permet l'évaluation de la réduction physique d'une dose échelonnée afin de reconnaître son niveau d'administration.
PCT/US2015/033095 2014-06-04 2015-05-29 Inhalateur de poudre sèche avec évaluation de la réduction de la dose WO2015187471A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/315,988 US20170095625A1 (en) 2014-06-04 2015-05-29 Dry powder inhaler with dose depletion evaluation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462007653P 2014-06-04 2014-06-04
US62/007,653 2014-06-04

Publications (1)

Publication Number Publication Date
WO2015187471A1 true WO2015187471A1 (fr) 2015-12-10

Family

ID=54767212

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/033095 WO2015187471A1 (fr) 2014-06-04 2015-05-29 Inhalateur de poudre sèche avec évaluation de la réduction de la dose

Country Status (2)

Country Link
US (1) US20170095625A1 (fr)
WO (1) WO2015187471A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3940677A1 (fr) * 2020-07-17 2022-01-19 Presspart Gmbh & Co. Kg Récipient à médicament et dispositif d'administration de médicament

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460173A (en) * 1993-03-03 1995-10-24 Tenax Corporation Dry powder inhaler medicament carrier
US20020077771A1 (en) * 2000-09-27 2002-06-20 Richard Mertens Method for checking the content of pockets in a blister package
US20060191534A1 (en) * 2000-03-10 2006-08-31 Hickey Anthony J Dry powder inhaler devices, multi-dose dry powder drug packages, control systems, and associated methods
EP2357015A2 (fr) * 2006-04-05 2011-08-17 MicroDose Therapeutx, Inc. Dispositif d'inhalation à doses variables

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT941426B (it) * 1971-07-17 1973-03-01 Isf Spa Inalatore a camera di turbinio per sostanze medicamentose polveriformi
US3948264A (en) * 1975-05-21 1976-04-06 Mead Johnson & Company Inhalation device
US5284133A (en) * 1992-07-23 1994-02-08 Armstrong Pharmaceuticals, Inc. Inhalation device with a dose-timer, an actuator mechanism, and patient compliance monitoring means
US5743250A (en) * 1993-01-29 1998-04-28 Aradigm Corporation Insulin delivery enhanced by coached breathing
GB9421687D0 (en) * 1994-10-27 1994-12-14 Aid Medic Ltd Dosimetric spacer
US5544647A (en) * 1994-11-29 1996-08-13 Iep Group, Inc. Metered dose inhalator
US6152130A (en) * 1998-06-12 2000-11-28 Microdose Technologies, Inc. Inhalation device with acoustic control
GB0025749D0 (en) * 2000-10-20 2000-12-06 Glaxo Group Ltd Inhaler
GB0217199D0 (en) * 2002-07-25 2002-09-04 Glaxo Group Ltd Medicament dispenser
JP5207679B2 (ja) * 2006-08-01 2013-06-12 キヤノン株式会社 薬剤吐出装置
US8539945B2 (en) * 2009-08-18 2013-09-24 Teva Pharmaceutical Industries Ltd. Dose counter and recording method
SG184839A1 (en) * 2010-04-11 2012-11-29 Proteus Digital Health Inc Apparatus, system and method for detection and delivery of a medicinal dose

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460173A (en) * 1993-03-03 1995-10-24 Tenax Corporation Dry powder inhaler medicament carrier
US20060191534A1 (en) * 2000-03-10 2006-08-31 Hickey Anthony J Dry powder inhaler devices, multi-dose dry powder drug packages, control systems, and associated methods
US20020077771A1 (en) * 2000-09-27 2002-06-20 Richard Mertens Method for checking the content of pockets in a blister package
EP2357015A2 (fr) * 2006-04-05 2011-08-17 MicroDose Therapeutx, Inc. Dispositif d'inhalation à doses variables

Also Published As

Publication number Publication date
US20170095625A1 (en) 2017-04-06

Similar Documents

Publication Publication Date Title
US11660408B2 (en) Compliance-assisting module for an inhaler
ES2932836T3 (es) Procedimiento y dispositivo de control de la adherencia
EP2512566B1 (fr) Identification de couleur pour système de délivrance de médicaments
US5794612A (en) MDI device with ultrasound sensor to detect aerosol dispensing
DK2182456T5 (en) Method for monitoring the operation of a drug delivery device, an electronic module, and a drug delivery system
EP3551260B1 (fr) Inhalateur
US5676129A (en) Dosage counter for metered dose inhaler (MDI) systems using a miniature pressure sensor
GB2262452A (en) Inhalation device
KR20190087475A (ko) 전자 장치를 구비한 약물 전달 기구
US10744283B2 (en) Tidal dry powder inhaler with miniature pressure sensor activation
JP2017531465A (ja) 配向センサー付き吸入器
JP2004512148A (ja) 薬剤ディスペンサ
US11305073B2 (en) Device and method for targeted delivery of aerosolized particles to the lungs
RO115406B1 (ro) Inhalator dozimetric
CN113271995A (zh) 吸入器检测
US20170095625A1 (en) Dry powder inhaler with dose depletion evaluation

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15802762

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15315988

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15802762

Country of ref document: EP

Kind code of ref document: A1